Question
Question: Two atoms X and Y are non-polar and electrically symmetrical. <img src="https://cdn.pureessence.tec...
Two atoms X and Y are non-polar and electrically symmetrical.
What type of intermolecular forces of attraction can be developed between them?
A
Dipole-induced dipole forces
B
London forces or dispersion forces
C
Dipole-dipole forces
D
No forces of any kind.
Answer
London forces or dispersion forces
Explanation
Solution
: In non-polar atom, a dipole may develop momentarily. If the atom X becomes unsymmetrical resulting in development of instantaneous dipole for a very short time, it distorts the electron density of Y which is close to it and dipole is induced in the atom Y. Temporary dipoles X and Y attract each other. This attraction is called London or dispersion force.